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Exam 350-401 topic 1 question 1066 discussion

Actual exam question from Cisco's 350-401
Question #: 1066
Topic #: 1
[All 350-401 Questions]

SIMULATION
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Guidelines
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This is a lab item in which tasks will be performed on virtual devices.

• Refer to the Tasks tab to view the tasks for this lab item.
• Refer to the Topology tab to access the device console(s) and perform the tasks.
• Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.
• All necessary preconfigurations have been applied.
• Do not change the enable password or hostname for any device.
• Save your configurations to NVRAM before moving to the next item.
• Click Next at the bottom of the screen to submit this lab and move to the next question.
• When Next is clicked, the lab closes and cannot be reopened.


Topology
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Tasks
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The operations team started configuring network devices for a new site. R10 and R20 are preconfigured with the CORP VRF. R10 has network connectivity to R20. Complete the configurations to achieve these goals:

1. Extend the CORP VRF between R10 and R20 using Tunnel0.
2. Protect Tunnel0 using the preconfigured profile.

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acook0411
Highly Voted 3 months, 1 week ago
the ip vrf forwarding command should be the first command as this usually removes the IP address which will need to be added back again.
upvoted 7 times
zbeugene7
1 day, 19 hours ago
Correct plus it needs two static routes: R10(config)#ip route vrf CORP 10.101.2.0 255.255.255.0 10.100.100.2 R20(config)#ip route vrf CORP 10.100.1.0 255.255.255.0 10.100.100.1
upvoted 1 times
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ali_sh85
Most Recent 3 weeks, 3 days ago
I think the following static routes are missing: R10(config)#ip route vrf CORP 10.101.2.0 255.255.255.0 tunnel 0 R20(config)#ip route vrf CORP 10.100.1.0 255.255.255.0 tunnel 0
upvoted 1 times
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Alisars
1 month, 4 weeks ago
why need "tunnel mode gre ip" doesnt see this from question
upvoted 1 times
NetworkJanitor
1 month, 3 weeks ago
You don't need it. GRE is the default mode for a tunnel. "The default tunnel mode for a Cisco interface is "GRE" (Generic Routing Encapsulation), meaning that when you configure a tunnel interface, it will automatically be set to use GRE encapsulation unless explicitly specified otherwise"
upvoted 1 times
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post20
2 months, 1 week ago
[Task 1] R10(config)# interface Tunnel 0 R10(config-if)# ip vrf forwarding CORP R10(config-if)# ip address 10.100.100.1 255.255.255.0 R10(config-if)# tunnel source e0/1 R10(config-if)# tunnel destination 10.10.2.20 R10(config-if)# tunnel mode gre ip R20(config)# interface Tunnel 0 R20(config-if)# ip vrf forwarding CORP R20(config-if)# ip address 10.100.100.2 255.255.255.0 R20(config-if)# tunnel source e0/2 R20(config-if)# tunnel destination 10.10.1.10 R20(config-if)# tunnel mode gre ip [Task 2] R10(config-if)# tunnel protection ipsec profile MYPROFILE R20(config-if)# tunnel protection ipsec profile MYPROFILE
upvoted 3 times
NetworkJanitor
1 month, 3 weeks ago
This config needs static vrf routes as well, otherwise, traffic will not be routed through t0
upvoted 3 times
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